First available as a less expensive wired version, JBL is now shipping Jembe Wireless Speakers ($99) as a still budget-priced alternative. This pair of can-shaped speakers connects to both computers and iOS devices over Bluetooth. Although the set is small and light enough to be tossed in a bag, it's designed to stay in one place and get plugged into a wall outlet; there's no integrated battery. The right speaker houses the controls, including a volumeā¦